<mat-toolbar>
  <td-search-box
    backIcon="arrow_back"
    placeholder="Search here"
    [alwaysVisible]="alwaysVisible"
    flex
  ></td-search-box>
  <button mat-icon-button>
    <mat-icon>more_vert</mat-icon>
  </button>
</mat-toolbar>
<button
  mat-button
  color="accent"
  (click)="toggleAlwaysVisible()"
  class="push-top"
>
  Always visible
</button>
